Method of making oxide dispersion strengthened powder

Details Method of making oxide dispersion strengthened powder Method of making oxide dispersion strengthened powder

1978-04-04

1979-05-22

Hunt, Brooks H.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite powder

75 05BC, 75206, 75211, 75251, B22F 100

Patent

active

041560531

ABSTRACT:
A process for preparing metal having a substantially uniform dispersion of hard filler particles. The process includes the steps of: admixing particles of a first metallic component with oxide particles having a negative free energy of formation at 1000.degree. C. of at least as great as that of aluminum oxide, and with a dissimilar second metallic component; and of milling for a period of time sufficient to produce powder characterized by a substantially uniform dispersion of hard filler particles and heterogeneous agglomerations of at least two metallic components. The first metallic component is from the group consisting of nickel, cobalt, iron and alloys thereof. Both the first and the second metallic component have an average particle size of less than 10 microns.

REFERENCES:
patent: 3716357 (1973-02-01), Evans et al.
patent: 3765867 (1973-10-01), Evans et al.
patent: 3778249 (1973-12-01), Benjamin

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